Cultivator.



v P. RICHARDSON.

GULTIVATOR. APPLIOATION FILED AUG. 26, 1914.

.1 ,133,884. Patented Mar- 30, 1915.

PAUL RICHARDSON, 0F LONGMON'L'COLORADO, ASSIGNOR or ONE-HQALF To. Emil .uromna, or LONGMONT, COLORADO.

CULTIVATOR.

Specification of Letters Patent.

Patented Mar. 30, 1915.

Application filed August 26, 1914. Serial No. 858,644,

To all whom it ma concern:

Be itknown that 1, PAUL RICHARDSON, citizen of the United States, residing at Longmont, in the county of Boulder and .State of Colorado, have invented new and .useful Improvements in Cultivators, of

which the following is a specification.

My present invention pertains to cultivators and the like, and more particularly to the connections of the tool standards of cultivators to the transverse bars that are drawn behind wheel-supported frames.

My invention contemplates the provision of a peculiar and advantageous transverse bar, peculiar and advantageous tool-standards, and peculiar and advantageous .keys for adjustably fixing the standards with respect to the transverse bar; the combination being exceedingly simple, compact and strong, and the relative arrangement of the parts being such that when it is desired to change the position of any tool standard relative to the transverse bar, the same can be expeditiously and easily accomplished Without entailing the employment of skilled labor.

The invention resides in the combination stated, and is not restricted to the specific construction of any one of the elements.

I have illustrated the best practical embodiment of my invention of which I am cognizant, in the accompanying drawings, in which:

Figure 1 is a top plan illustrating the transverse bar, its draw-bars, and two tool standards adjustably fixed in accordance with my invention in and to the transverse bar. Fig. 2 is a front elevation of the same. Fig. 3 is an end elevation illustrating the brace arranged at the outer side of an adjacent draw-bar. Fig. 4. is an enlarged section taken in the plane indicated by the line 44 of Fig. 2, looking toward the left. Fig. 5 is a detail front elevation of one of the curvilinear keys that I prefer to employ.

Similar numerals of reference designate corresponding parts in all the views .of the drawings.

The transverse bar 1 of my novel combination is of channel-form, open at its forward side, and made up of an upper wall 2, a lower wall 3 and a back wall l. Without involving departure from the scope of my claimed invention, the said walls 2, 3

and 4 may be formed in one piece, or fixed in.

any approved manner with respect to each other, and the upper and lower walls 2 and .3 may be disposed at any desired angle relative to the back wall 4. I prefer, however, to form the said walls 2, 3 and a of separate pieces, and to fixedly connect said walls together through the medium of end braces 0, Figs. 2 and 3, riveted, as indicated by 6, to the top, bottom and backwa'lls.

In the top and bottom walls 2 and 3, a series of alined elongated apertures 7 are provided. The number of the pairs of apertures 7 varies of course according to the numberof tool standards to be carried by the bar 1. In practice 84: pairs of apertures are provided while from 8 to 13 tools are employed at one time.

Riveted or otherwise suitably fixed in and to the transverse bar 1 or the walls thereof, are forwardly extending draw-bars 8.

These latter are designed to be connected in upper portions 10, the forward edges of said portions 10 being notched, as indicated by 11. From this it follows that when a tool standard is arranged as shown in F ig. 4 with one of its notches 11 receiving the edge of the upper wall 2 at the forward end of one of the apertures 7, and a suitable key 12 is seated in the aperture back of the tool standard, the standard will be adjustably and strongly fixed to the transverse bar without liability of casual displacement. When, however, the key 12 is withdrawn from the aperture, the tool standard 10 can be readily shifted in the transverse bar 1 to another position, after which the key 12 may be replaced to accomplish the purpose before stated. From this it follows that the tool standards may be made to extend a greater or less distance below the transverse bar as occasion demands. The key 12 may be of any form and construction compatible with the purpose of my invention with: out involving departure from the scope of my invention as claimed. prefer, however, that the keys should be curved in the side of the row. Then direction of their length, and provided with beads 13 and lateral arms let, the latter to rest on the bar wall 2 when the keys are seated in their respective apertures.

It will be gathered from the foregoing that the connection of the tool standards with'the transverse bar 1 is such that the tool standards are reinforced by the bar 1, and no strain is placed on the keys 12; also, that no elements other than the keys 12 are necessary to the adjustable fixing of the tool standards with respect to the bar 1. While I show the braces 5 at the ends of the transverse bar 1, and refer to them as end braces, it is to be understood that without affecting my invention braces may be employed at various intervals in the length of the transverse bar, as occasion demands.

The provision of a large number of apertures in the transverse bar will be appreciated as an important advantage when it is stated that in cultivating small plants, I set the tools'close tothe plants one on each as the plants grow larger I set the tools at a greater distance from the plants.

'I do not desire to be understood as confining myself to curving the upper portions of the tool standards. I prefer, however, to so curve the standards because such provision enables me to. regulate the suction of tools carried by the standards.

Having described my invention, what I claim and desire to secure by Letters-Patcut, is: i

1. The combination-of a channel-form transverse bar having apertures in its upper and lower walls, a tool standard disposed in said apertures and having a notch in its edge receiving one Wall of one aperture, and a key disposed in said aperture and holding the tool standard in engage- .ment with said Wall.

I 2. The combination of a channel-form bar 1 having apertures in its upper and lower walls, a tool standard having a curved portion disposed in said apertures and also having one edge of saidv curved portion notched to receive one Wallof one aperture, and a key disposed in the aperture and between the opposite Wall thereof and the tool standard and supported by the Wall of the 3. The combination of a channel form bar open at its forward side and having forwardly diverging upper and lower Walls and alined apertures therein, a tool standard having a forwardly curved portion disposed in said apertures and also having one edge of said portion notched and receiving one Wall'of one aperture and a key arranged between the opposite wall of theaperture and the standard and supported by said wall of the bar.

In testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses.

' PAUL RICHARDSON.

Witnesses:

G. P. BROWN, JOHN E. HILL. 

